2216720003 has 4 divisors (see below), whose sum is σ = 2222760480. Its totient is φ = 2210679528.

The previous prime is 2216719969. The next prime is 2216720111. The reversal of 2216720003 is 3000276122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2216720003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216720203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3019688 + ... + 3020421.

It is an arithmetic number, because the mean of its divisors is an integer number (555690120).

Almost surely, 2^2216720003 is an apocalyptic number.

2216720003 is a deficient number, since it is larger than the sum of its proper divisors (6040477).

2216720003 is an equidigital number, since it uses as much as digits as its factorization.

2216720003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040476.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2216720003 is about 47082.0560617312. The cubic root of 2216720003 is about 1303.8779672630.

Adding to 2216720003 its reverse (3000276122), we get a palindrome (5216996125).

The spelling of 2216720003 in words is "two billion, two hundred sixteen million, seven hundred twenty thousand, three".